| Cave Spring to Karlovo | 5,176.93 mi (8,331.46 km) |
| Cave Spring to Karnobat | 5,264.83 mi (8,472.92 km) |
| Cave Spring to Kavarna | 5,283.53 mi (8,503.01 km) |
| Cave Spring to Kazanlak | 5,202.03 mi (8,371.85 km) |
| Cave Spring to Knezha | 5,112.21 mi (8,227.31 km) |
| Cave Spring to Kostinbrod | 5,105.04 mi (8,215.77 km) |
| Cave Spring to Kozloduy | 5,086.51 mi (8,185.95 km) |
| Cave Spring to Kyustendil | 5,104.84 mi (8,215.45 km) |
| Cave Spring to Levski | 5,159.89 mi (8,304.05 km) |
| Cave Spring to Lom | 5,064.82 mi (8,151.04 km) |
| Cave Spring to Lovech | 5,152.85 mi (8,292.71 km) |
| Cave Spring to Lukovit | 5,127.93 mi (8,252.61 km) |
| Cave Spring to Lyaskovets | 5,194.42 mi (8,359.61 km) |
| Cave Spring to Mezdra | 5,111.09 mi (8,225.51 km) |
| Cave Spring to Momchilgrad | 5,248.36 mi (8,446.43 km) |
